ProcSplitter.cc

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#include <iostream>
#include <vector>
#include <string>

#include <xercesc/dom/DOM.hpp>

#include "FWCore/Utilities/interface/Exception.h"

#include "PhysicsTools/MVAComputer/interface/AtomicId.h"

#include "PhysicsTools/MVATrainer/interface/MVATrainer.h"
#include "PhysicsTools/MVATrainer/interface/TrainProcessor.h"

XERCES_CPP_NAMESPACE_USE

using namespace PhysicsTools;

namespace { // anonymous

class ProcSplitter : public TrainProcessor {
    public:
    typedef TrainProcessor::Registry<ProcSplitter>::Type Registry;

    ProcSplitter(const char *name, const AtomicId *id,
                 MVATrainer *trainer);
    virtual ~ProcSplitter();

    virtual void configure(DOMElement *elem) override;
    virtual Calibration::VarProcessor *getCalibration() const override;

    private:
    unsigned int    count;
};

static ProcSplitter::Registry registry("ProcSplitter");

ProcSplitter::ProcSplitter(const char *name, const AtomicId *id,
                           MVATrainer *trainer) :
    TrainProcessor(name, id, trainer)
{
}

ProcSplitter::~ProcSplitter()
{
}

void ProcSplitter::configure(DOMElement *elem)
{
    DOMNode *node = elem->getFirstChild();
    while(node && node->getNodeType() != DOMNode::ELEMENT_NODE)
        node = node->getNextSibling();

    if (!node ||
        std::strcmp(XMLSimpleStr(node->getNodeName()), "select") != 0)
        throw cms::Exception("ProcSplitter")
            << "Expected select tag in config section."
            << std::endl;

    elem = static_cast<DOMElement*>(node);

    count = XMLDocument::readAttribute<unsigned int>(elem, "first");

    node = node->getNextSibling();
    while(node && node->getNodeType() != DOMNode::ELEMENT_NODE)
        node = node->getNextSibling();

    if (node)
        throw cms::Exception("ProcSplitter")
            << "Superfluous tags in config section."
            << std::endl;

    trained = true;
}

Calibration::VarProcessor *ProcSplitter::getCalibration() const
{
    Calibration::ProcSplitter *calib = new Calibration::ProcSplitter;
    calib->nFirst = count;
    return calib;
}

} // anonymous namespace